MySQL trigger to generate a slug before inserting a new row

mysql-slug.sql

CREATE DEFINER=`[USER_NAME]`@`%` TRIGGER `[DATABASE_NAME]`.`Slug` BEFORE INSERT ON `[TABLE_NAME]`.`games` FOR EACH ROW 
BEGIN
	IF NEW.slug IS NULL THEN
    	SET NEW.slug = LOWER(TRIM(NEW.name));
    	SET NEW.slug = REPLACE(NEW.slug, ':', '');
    	SET NEW.slug = REPLACE(NEW.slug, ')', '');
    	SET NEW.slug = REPLACE(NEW.slug, '(', '');
    	SET NEW.slug = REPLACE(NEW.slug, ',', '');
    	SET NEW.slug = REPLACE(NEW.slug, '\\', '');
    	SET NEW.slug = REPLACE(NEW.slug, '?', '');
    	SET NEW.slug = REPLACE(NEW.slug, '\'', '');
    	SET NEW.slug = REPLACE(NEW.slug, '&', '');
    	SET NEW.slug = REPLACE(NEW.slug, '!', '');
    	SET NEW.slug = REPLACE(NEW.slug, '.', '');
    	SET NEW.slug = REPLACE(NEW.slug, '€', '');
    	SET NEW.slug = REPLACE(NEW.slug, 'euro;', '');
    	SET NEW.slug = REPLACE(NEW.slug, ' ', '-');
    	SET NEW.slug = REPLACE(NEW.slug, '--', '-');
    END IF;
END;